A. Korpela, A. K. Jaiswal, A. Tanaka, and J. Asikainen, “Piloting Wet Tensile Strength Development of Polyamide-Amine-Epichlorohydrin Wet Strengthened Nordic Bleached Softwood Pulp Paper by Alkyl Ketene Dimer Internal Sizing”, BioRes, vol. 17, no. 4, pp. 6970–6982, Nov. 2022.